221002200012111 has 48 divisors (see below), whose sum is σ = 363247638899040. Its totient is φ = 118958290913280.

The previous prime is 221002200012103. The next prime is 221002200012131. The reversal of 221002200012111 is 111210002200122.

It is not a de Polignac number, because 221002200012111 - 2³ = 221002200012103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221002200012131) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 632044026 + ... + 632393591.

It is an arithmetic number, because the mean of its divisors is an integer number (7567659143730).

Almost surely, 2^{221002200012111} is an apocalyptic number.

221002200012111 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

221002200012111 is a deficient number, since it is larger than the sum of its proper divisors (142245438886929).

221002200012111 is a wasteful number, since it uses less digits than its factorization.

221002200012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1264437704 (or 1264437697 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 221002200012111 its reverse (111210002200122), we get a palindrome (332212202212233).

The spelling of 221002200012111 in words is "two hundred twenty-one trillion, two billion, two hundred million, twelve thousand, one hundred eleven".